Electrical Motors

Electrical motors convert electrical energy into mechanical energy. They operate through the interaction of the motor's magnetic field and its winding currents to generate force. The most common electrical motors apply the principles of magnetic force fields although some motors can be electrostatic or piezoelectric. They can be powered by alternating and/or direct current.
When considering the different types of electrical motors, some of the ways they are classified include by electric power source, internal construction, application and type of motor action. Motors vary widely in size and can be big enough to propel a ship or small enough to fit into an electric watch. Motors are either synchronous or asynchronous. Some of the most common kinds of electrical motors include brushed DC motors, brushless DC motors, induction motors, torque motors, stepper motors and servo motors.
Electrical motors affect every single aspect of our lives. General-purpose motors provide convenient mechanical power for industrial use while motors are used in electric power distribution. Electrical motors are a key component of many domestic appliances and are also used to ensure the correct functioning of computer hardware. Even devices for home entertainment such as DVDs contain electrical motors.